What He Said
You have to go read 10 reasons to avoid talking on the phone — The Oatmeal (discovered via kottke, natch). (Like you were going to do any actual work first thing on Monday morning anyhow. Get real!)
I heartily concur with each example, so this list falls into the category of Rules I Live By and Would Encapsulate in Cartoon Form If Only I Could Draw . . . Although come to think of it, the artwork is barely a step up from stick figures (which in this case adds to the hilarity) so perhaps artistic ability is not the major impediment I think it is.